307012061 has 4 divisors (see below), whose sum is σ = 325071612. Its totient is φ = 288952512.

The previous prime is 307012049. The next prime is 307012109. The reversal of 307012061 is 160210703.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 155475961 + 151536100 = 12469^2 + 12310^2 .

It is a cyclic number.

It is not a de Polignac number, because 307012061 - 2¹⁰ = 307011037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307012031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9029750 + ... + 9029783.

It is an arithmetic number, because the mean of its divisors is an integer number (81267903).

Almost surely, 2^307012061 is an apocalyptic number.

It is an amenable number.

307012061 is a deficient number, since it is larger than the sum of its proper divisors (18059551).

307012061 is a wasteful number, since it uses less digits than its factorization.

307012061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18059550.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 307012061 is about 17521.7596433692. The cubic root of 307012061 is about 674.6085053074.

Adding to 307012061 its reverse (160210703), we get a palindrome (467222764).

The spelling of 307012061 in words is "three hundred seven million, twelve thousand, sixty-one".